Reverse Charge tax liability calculations & tracking

At times we need to be able to calculate and report on reverse charge tax liabilities that a customer will owe to their local government but does not pay us directly. We will create a billing for the services they purchase, and can easily calculate what tax they should owe their government. But we're not sure how we should record those taxes without them appearing as billing line records. 

Does Accounting Seed have a way to track reverse charge tax liability calculations like this? In a way that works well with Billing records? And for annual reporting?

Any advice is greatly appreciated! Thank you.